Photoelectrochemical Cells Maya Derenthal Jamielyn Jarvis Wendy Zhou Faculty Advisor Dr Jonathan Whitlow Dept of Chemical Engineering Florida Institute of Technology ABSTRACT NOVELTY ID: 1041539
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1. Carbon Dioxide Conversion Using Photoelectrochemical CellsMaya Derenthal, Jamielyn Jarvis, Wendy ZhouFaculty Advisor: Dr. Jonathan Whitlow, Dept. of Chemical Engineering, Florida Institute of TechnologyABSTRACTNOVELTYPHOTOELECTROCHEMICAL CELLREACTIONSCO2 production has become one of if not the major contributor to global warming due to continual increase of greenhouse gas emissions caused by anthropogenic activity. Currently, complete transfer from high CO2 production methods into greener processes is not technically or economically feasible. As an intermediary plan, CO2 conversion processes are a viable option to pursue to not only tackle CO2 emissions but also produce highly valuable chemical feedstocks used in industry.Anode2H2O → 4H+ + 4e- + O2(g)Cathode2CO2 + 12H+ + 12e- → C2H4(g) + 4H2OCO2 + 6H+ + 6e- → CH3OH(l) + H2O2CO2 + 12H+ + 12e- → C2H5OH(l) + 3H2O2H+ + 2e- → H2(g)TiO2 nanoparticles synthesized in supercritical medium to be used as catalyst (SC-TiO2)Membrane Electrode Assembly (MEA) coupled with anode of PECConstant supply of CO2 to PECGreener production process compared to current practices for methanol, ethylene, and hydrogenMOTIVATIONSThe goal of this project is to successfully simulate a production plant that utilizes an array of photoelectrochemical cell (PEC) alongside TiO2 nanoparticle catalyst to produce methanol, ethylene, and hydrogen gas. Simulation will be done in Aspen Plus, assuming a 10-year plant life, with a costing and economic analysis having been completed.BLOCK FLOW DIAGRAMPROCESS FLOW DIAGRAMMerino-Garcia, Ivan, et al. “Efficient Photoelectrochemical Conversion of CO2 to Ethylene and Methanol Using a Cu Cathode and TiO2 Nanoparticles Synthesized in Supercritical Medium as Photoanode.” Journal of Environmental Chemical Engineering, vol. 10, no. 3, June 2022, p. 107441. ScienceDirect, https://doi.org/10.1016/j.jece.2022.107441.